Machine for making sheet-metal oval or circular frames.



No. 685.53I. Patented Oct. 29, I90I. H. A. SEYMOURE.

MACHINE FOR MAKING SHEET METAL'CVAL 0R CIRCULAR FRAMES.

(Application filed May 15, 1901.)

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II. nlm" Illu Wweewedx N0.'685,53|. Patented Oct. 29, |90l. H. A. SEYMOURE.

MACHINE FOR MAKING SHEET METAL OVALUR CIRCULAR FRAMES.

, (Application filed May 15,l 1901.) (N0 M0d6|.)'

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No. 685,53I.

Patented Oct. 29, 190|. H. A. SEYMOURE. MACHINE FCR MAKING SHEET METAL ovAL 0R CIRCULAR FRAMES.

(Apphcaticn tiled. May 15, 190).)

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'UNITED STATES vPATENT OFFICE. l

IIARRY A. SEYMOURE,l OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO JACOB LOWENTHAL, OF CHICAGO, ILLINOIS.

SPECIFICATION forming part of Letters Patent N o. 685,531, dated October 29, 1901.

Application tied' May 15, 1901. sentir. 60,414. (No man.)

'To @ZZ whom, it may concern.:

Beit known that I, HARRY A. SEYMOURE, a

citizen of the United States of America, and l a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Machines for Making Sheet-Metal Oval or Circular Frames,

of which the following, when taken in connection with the drawings accompanying and ro forming a part hereof, is a full and complete description, sufticient to enable those skilled in the art to which it pertains to understand,

make, and use the same.

The object of this inventionis to obtain a t 5 machine whereby expansible sheet-metal oval of the kind .above set out can be made ofv larger diameter than can be stamped or spun 3o with a bead or torus on one edge thereof.

In the drawings referred to, Figure l isa perspective View of a machine embodying my invention, with a part of the stationary frame of such machine broken away to expose to View the working parts of the machine. Fig. 2 is atop plan View of the machine illustrated in Fig. l. Fig. 3 is a vertical sectional view Von line 3 3 of Fig. 2 viewed in the direction indicated by the arrows. Fig. 4 is a front ao view of a forming-wheel constituting an element in the machine embodying this invention, and Fig. 5 is a sectional View of such forming-wheel. Fig. 6 is a perspective view of a part of the pivotally and vertically movable frame in which the forming-wheel illustrated in Figs. 4 and 5 is rotatably mounted. Fig. 7 is a longitudinal vertical sectional View of the pivotally and vertically movable frame shown in perspective in Fig. 6, of the formingwheel shown in front elevation and in longitudinal section in Figs. 4 and 5, and a sectional view of the head of the sliding frame of the machine, in which head the pivotally and vertically movable frame illustrated in Fig. G is mounted, and with broken lines in- Y dicating the vertical movement of such frame.

Fig.A 8 is a top plan View ofthe rotatable bed-V plate of the machine, by means of which oval frames are made, and of the forming-wheel and pivotally and vertically movable frame, 6o such frame being shown in section, with broken lines showing the rotatable bed-plate `atdierent positions with corresponding positions of the forming-Wheel. Fig. 9 is avertical longitudinal sectional view of a modification o'f the machine embodying the invention,wth broken lines showing different positions of 4the sliding frame, thepivotally and vertically movable frame, andthe forming-wheel tot' the machine. Fig. 1Q is a top plan view of 7o the pivotally and vertically movable frame of the machine illustrated in Fig. 9 and of Sheet 2, is a vertical sectional View of the connection between the crank-arm and connection therefrom to the sliding frame of the machine. Fig. 13,' Sheet l, is a Vertical sectional view ofa portion of the edge of the rotatable bed-plate of the modifications of the machine illustrated in Figs. 7, 8, and 9-and 9o of a portion of the forming-wheel. Fig. 14 is a sectional view of a portion of the bed-plate and the attached parts thereto of the machine illustrated in Figs. l, 2, and 3 of the drawings; and Fig. l5 is a top plan view ofa 95 rotatable bed-plate and the forming-wheel thereof used in making a circular frame having a bead or torus onboth edges thereof', such rotatable bed-plate arranged to be substituted for the oval bed-plate illustrated in 1`oo' Figs. l, 2, and 3 of the drawings.

.A reference-letter applied to designate a given part is used to indicate such part through the several figures wherever the same appears.

A is the stationary frame of the machine.

B is a sliding frame.

C is a vertical shaft rotatably mounted in frame A and is the driving-shaft of the machine.

C is the driving-pulley of the machine, and C2 is the driving-belt.

C3 is a gear-wheel keyed on shaft C and intermeshing with gear-wheel D' on shaft D. Shaft D is a vertical shaft rotatably mounted in frame A, and gear-wheel D is keyed thereon. Gear-Wheel C3 has one-half the number of teeth therein as has the intermeshing gear- Wheel D', and therefore rotates twice to each rotation of such wheel D.

D2, Figs. 1, 2, and 3, is the bed-plate of the machine and is attached to the upper end of the rotatable shaft D by means of the bolts d d, passing therethrough and through the collar d', which is keyed to such vertical shaft.

To make a frame having a bead or torus on both edges of the metal strip constituting such frame,a chuck is attached to the bed-plate D2, and such chuck willbe hereinafter sufficiently described, so that the operation thereof in connection with this machine may be understood by those skilled in the art, although no claim of patentable novelty is herein made on such chuck; but to make a frame having a bead or torus on one edge only of the metal strip which constitutes the frame no chuck is required, although, of course, such chuck may be so used, and D3 in Figs. 7, 9, and 13 illustrates a slight modification required Ain such bed-plate for such purpose.

D4, Fig. 15, is a circular bed-plate, which may be substituted for the oval bed-plate D2 whenever desired, as by removing the bolts d d (see Figs. l and 9) from such oval bedplate and replacing them in the circular bedplate D4.

The oval bed-plates D2 D3 (see Figs. 3, 9, 13, and 14) are provided, respectively, with the shoulder d3, on which shoulder the lower edge of the metal strip E rests and by which it is supported when the upper edge thereof is acted upon by the forming-wheel F to turn down such upper edge e and form the strip E into the oval or circular frame made thereof provided with the bead or torus e (see Fig. 13) on the upper edge thereof, such upper edge being the front of the frame made on this machine.

A metal frame made on the machine embodying this invention and having a single bead or torus e' may be made non-expansible, the glass, picture, or other matter and backing being placed in the frame from the rear thereof and secured therein in the ordinary manner of securing backs in metal frames; but when a metal frame made ou the lnachine embodying this invention is provided with a bead or torus c on the front thereof and a corresponding bead or torus e2 ble; but nevertheless such expansibility is not required in the manufacture of such f rames on the machine embodying this invention when the chuck hereinbefore referred to and about to be described is used, and hence no claim of patentable novelty for an expansible metal frame provided with a bead or torus on the front and back thereof is made in this application.

The chuck hereinbefore referred to comprises oval ring G, which is rigidly attached to bed-plate D2, split oval G', which rests movably on bed-plate D2, wedge-shaped keys G2, which also rest movably on bed-plate D2, and means for withdrawing split oval ring G/ and keys G2 G2 from the oval ring G or from .the strip of metal E between such split oval ring and keys and the oval ring G. (See Fig. 14.) The mechanisms by which the split ring G' and keys G2 G2 are controlled consist of the Wheel G2, provided with a handle and ro-V tatably mounted on spindle D5, which spin-v dle may be a continuation of vertical shaft D, and the arms g g', attached to the hub of hand-wheel G3 and to the split ring G and keys G2 G2, respectively, in such manner that 'the turning of the hand-wheel in one or thel other direction will simultaneously move such split ring and keys inward and away fronr oval ring Gand strip E oroutward and against such strip E and ringG. In the split ring Gl and also in the keys G2 G2 there is a pe# ripheral recess g2, positioned relative to theI bead or torus g3 (see Fig. 14) and the width of the strip E, so that when the bead or torusl e has been formed and the strip is placed on the bed-plate of the machine with bead or' torus e' in recess g2 there will be sufficient width of such strip at the edge e thereof toy form the bead or torus e2 when such strip is formed down on the bead or torus g3 by the forming-wheel H, as hereinafterdescribed.

The manner in which the forming-Wheel F is held in position relative to the oval bedplate and attachments thereon, so as to be forced down upon the upper edges of the strip E to form the bead or torus thereon, and also the mechanisms by which such forming-wheel is forced down on the edge of the strip E are illustrated in Figs. 1, 2, 3, 7, 9, and 10, some of the special details of such mechanisms be ing shown on an enlarged scale in Figs. 4f, 5, G, 11, 12, 14, and 15, and now I Will describe the same.

Sliding head B is moved back and forth to hold head I) thereof in proper relative posi-` tion to the bed-plate D2 and its attachments by means of crank-arm H and connection I. Crank-arm H is keyed to the upper end of vertical rotatable shaft C to rotate with such shaft.

To make the machine changeable for the making of oval frames of different sizes, connection I is adjustable in crank-arm Il, therefog by varying the length of such crank-arm, such adjustable attachment being obtained by providing the groove h in such crank-arm H (see Fig. l2) and placing the bolt h', with head h2 thereof, in such groove h, so that the collar h3 and nut h4 may be tted over the screw-threaded end of the bolt. Collar h3 is placed within the hole in connection I. Tightening of the nut in place on bolt h firmly secures such bolt in place without tightening the pivotal attachment'of connection I` thereto.

H is the pivotal attachment of connection I to sliding frame D and may be substantially the same in construction as is connection h, if desired.

Rotation of shaft C rotates crank-arm H, and as such shaft C makes two complete revolutions to each revolution ofthe shaft D the sliding frame B moves in unison with the path of the periphery of the bed-plate cl2, adjacent to head b, so that such head is maintained substantially in contact (when in an operative position) with the periphery of the ring or oval G or bed-plate D2. To provide compensation of any variation which may occur in the movement of such head b and the periphery adjacent thereto of the oval ring G or bed-plate D2, such head b is mounted on the longitudinallymovable nonrotatable shaft b in standards b2 b2 of the sliding frame B, and spring b3 is interposed on shaft b between collar b4 (which is firmly secured to shaft b) and the collar b5, (which lits loosely on shaft b.)

To move the head b from an operative position to an inoperative position, collar b7 is firmly set on shaft b and handle h6 is pivotally mounted, as at t8, Fig. 2, so that the swinging of the free end of such handle b6 will alternately bring it into contact with the loosely-tting collar 05er firmly-set collar bf. When the Afree end of the handle b is moved from the position thereof illustrated in Fig. 2 of the drawings toward the left, as soon as the part of such handle adjacent to set collar 57 comes in contact with such collar the shaft b will be moved from the position thereof illustrated in Figs. 2 and 9 in `the drawings into substantially the position indicated by broken lines in Fig. 9 of the drawings. The position of shaft b indicated by dotted lines in Fig. 9 of the drawings is termed by me its inoperative position, as at such time the forming-wheel F, pivotally mounted, as about to be described, in head b, is not in contact with the strip of metal designed to be made into a frame or with the bed-plate D2 or any of the attachments on such bed-plate. When the handle bs is in the position illustrated by full lines in Figs. l, 2, 3, and 9 of the drawings, the forming-wheel F is maintained in an operative position, loosely-fitting collar b5 on shaft b being forced to the right hand by such handle b6 and collar b4 being yieldingly forced to the right hand by spring b3, interposed between such collars b4 b5, as hereinbefore described. When the forming-wheel is in operative position, by the movement of the handle as last above described it is ryieldingly held with the rabbet f' thereof above the bead or torus of split ring G' and keys G2 G2 or bedplate D3 when such bed-plate D3 is substituted for bed-plate D2 and the attachments thereof. As the Vbed-plate D2 is rotated with the rabbet f of the forming-wheel F in close contact with bead or torus of oval ring G' such forming-wheel may be moved by the periphery of the oval ring to force head b, with shaft b', back, so that spring b3 is compressed by set collar b4 coming against one end of such spring when certain oval frames are made corresponding in shape with the bed-plates D2 D3,

respectively, and for that reason the abovedescribed construction of shaft b in bearings b2 b2, with spring dSand collars d4, d5, and 197 'and handle b, is adopted by me. To prevent rotation ofthe head b and shaft b', pin or guide b9 is secured in head b in position to move freely in a corresponding hole in the standard b2, which is adjacent to such head.

Forming-wheel F is mounted in head b as follows: J is the pivotally and verticallyv movable frame, provided with the spindle j, on

-Which the forming-wheel F is rotatably mounted. Toprovide for the rotation of the rabbet f of forming-wheel F in substantially the same vertical plane in which the pivotal parts Zt care placed, a considerable portion of the frame J is cutaway between such pivotal part k lo', as is well illustrated in Figs. 6 and 7 of the drawings. Pivotal parts lo 7c of frame J are sufficiently long to permitv the required vertical movement in frame b, and to control such Vertical movement the screwthreaded collar K is placed on pivot 7c to turn loosely thereon, with hand-wheel'K keyed thereto and head 7a2 firmly secured-onv pivotal part k, as by pin las, so as topermit rotation of such screw-threaded collar K and to prevent longitudinal movement of such collar `K on pivot k, andsuch screw-threaded collar K fits corresponding screw-threads in the hole in the head b, through which such collars extend. (See Fig. 7.)

I find when constructed as last above desume all andA any of the several positions thereof required when the bed-plates D2 and D3 are respectively rotated, while by means of the continuous rotation of the hand-wheel K such forming-wheel F is gradually forced down upon the upper edge e of the strip E, and such upper edge is thereby forced or formedl down onto the bead or torus of the bed-plate.

The several positions of the forming-wheel F, crank-arm H, connection I, and pivotally and vertically movable frame J are indicated by the broken lines in Figs. 8, 9, 10, and ll-of the drawings.

When a met-al frame having a bead orftorus on the front edge thereof is to be made on the machine embodying my invention by the use ICO IIO

yscribed the forming-wheel F will readily asof the bed-plate D3, (see Figs. 9 and 13,) the flange j (or vertical part f) of the formingwheel F is relied upon to maintain the strip E in close contact with the periphery of such bed-plate, and in such case the spring h3 is made with considerable tension thereto. The manner in which such strip E is so held in place is well illustrated in Fig. 13 ofthe drawings.

The peripheral groove g2 (see Figs. 3 and 14 of the drawings) is made at the upper part thereof on line g, Fig. 14, so that as the split ring G and keys G2 G2 are drawn inward and away from the strip E and turned over bead or torus e' or e2, or both, thereon such strip may be raised simultaneously with the retraction or drawing in of such split ring and keys, and thereby the strip E is disengaged from the chuck of the machine.

vWhen a single bead or torus e is made on the machine embodying my invention with the bed-plate D3, (see Figs. 9 and 13,) the frame may be drawn vertically off from such bed-plate after it has been formed up from strip E, as hereinbefore described.

\Vhen acircular frame, with ahead or torus on one or both of the edges thereof, is made with or by a machine embodying this invention, as on the bed-plate D4, the connection I is loosened or taken from pivotal connections H and 7i and the sliding frame B is rigidly secured in place on frame A, as no movement in such sliding frame Bis there required, as head b is at all times substantially the same distance from the axial line of shaft D.

To turn the bead or torus e' on the machine embodying this invention and using the bedplate D2 with the several attachments thereof, a strip of metal E, preferably sheet-brass known as soft or half-hard, is taken and the ends secured together, after which such strip is placed between oval G and split oval .G,with the lower edge thereof against shoulder d3, and such split oval, together with the keys G2 G2, are forced outwardly and lirmly against such strip. The table D2, together with the oval G, split oval G', and keyes G2 G2, are then rotated, as by the driving-belt C2, shafts G and D, and intermeshing gearwheels C3 and D', and the forming-wheel is gradually forced down on the upper edge e of such strip E by means of hand-wheel K.

I have throughout this specification referred to the turned-over portion of the sheetmetal strip constituting the frame made by the hereinbefore-described machine as a bead or torus; but it is evident that the precise shape given to such turned-over part 'is not an essential part of this invention and that, if desired, a different contour line of the edgemolding, as an ogee, ovolo, astragal, or other form, may be made.

I-Iaving thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a machine for making sheet-metal esassi frames, the combination of a rotatable bedplate, provided with a bead, means for removably attaching a strip of sheet metal, having its ends united, to such bed-plate, adjacent to the bead, and with one edge thereof projecting beyond the bead, a pivotally and longitudinally movable frame, a forming-wheel rotatably mounted on the pivotally and longitudinally movable frame, such formingwheel `provided with a peripheral rabbet corresponding in shape with the bead, means to rotate the bed-plate, and means to maintain the forming wheel adjacent thereto with the rabbet therein over the bead and in contact with the projecting edge of the metal strip; substantially as described.

2. In a machine for making sheet-metal frames, the combination of a rotatable bedplate provided with a bead, means for removably attaching a strip of sheet metal, having its ends united, to such bed-plate, adjacent to the head and with one edge thereof projecting beyond the bead, a sliding frame, a pivotally and longitudinally movable frame mounted in the sliding frame, a formingwheel rotatably mounted in the pivotally and longitudinally movable frame, such formingwheel provided with a peripheral rabbet corresponding in shape with the bead, means for rotating the bed-plate, and means to maintain the forming-wheel with the rabbet therein, in contact with the projecting edge ofthe metal strip; substantially as described.

3. In a machine for making sheet-metal frames, the combination of a rotatable bedplate provided with a bead, means for removably attaching a strip of sheet metal, having its ends united, to such bed-plate, adjacent to the bead and with one edge thereof projecting beyond the bead, means to rotate the bedplate, a sliding frame, a head yieldingly mounted in the sliding frame, a pivotally and longitudinally movable frame mounted in such head, a forming-wheel rotatably mounted in the pivotally and longitudinally movable frame, such forming-wheel provided with a peripheral rabbet corresponding in shape with the bead, a screw-threaded collar on the pivotally and longitudinally movable frame and a corresponding screw-thread in the yielding head, and means to automatically move the sliding frame, whereby the rabbet in the forming-Wheel is maintained in position over the bead and in contact with the projecting edge of the metal strip as the bedplate rotates; substantially as described.

4. In a machine for making sheet-metal frames, the combination of a rotatable bedplate provided with a bead, means for removably attaching a strip of sheet metal, having its ends united, to such bed-plate, adjacent to the bead and with one edge thereof projecting beyond the bead, shafts rotatably mounted in the frame of the machine, intermeshing gears on such shafts, a connection between the bed-plate and one of such shafts and a crank-arm on the other of such shafts,

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a sliding frame, a connection between the sliding frame and the crank-arm, a head yieldingly mounted in the sliding frame, a pivotally and longitudinally movable frame mounted in such head, a forming-Wheel rotatably mounted in the pivotally and longitudinally movable frame, such forming- Wheel provided With a peripheral rabbet corresponding in shape with the bead, a screwthreaded collar on the pivotally and longitudinally movable frame and a corresponding screw-thread in the yielding head, and means to automatically move the sliding frame whereby the rabbet in the forming-Wheel is maintained in position over the bead and in contact with the projecting edge of the metal strip as the bed-plate rotates; substantially as described.

5. In a machine for making sheet-metal frames, the combination of a rotatable bedplate, provided with a molding on the operating-face thereof, means for removably attaching a strip of metal having its ends united, to such bed-plate, adjacent to the molding and with one edge thereof projecting beyond such molding,a movable frame,a head yieldingly mounted in such frame, a pivotally and longitudinally movable frame in such head, a forming-Wheel rotatably mounted on the pivotally and.- longitudinally movable frame, such forming-wheel provided With a peripheral rabbet corresponding in shape with the molding, means to rotate the bed-plate, means to automatically move the movable frame to maintain the forming- Wheel in the yielding head thereof adjacent to the molding and means to maintain such forming-Wheel in Contact With the projecting edge ofthe metal strip to force the same to a shape corresponding with the molding substantially as described.

HARRY A. SEYMOURE.

Witnesses:

CHARLES TURNER BROWN,- C. A. ADAMS. 

